CVE-2022-49460 [Medium] | Security Vulnerability in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: rk3399_dmc: Disable edev on remove() Otherwise we hit an unablanced enable-count when unbinding the DFI device: [ 1279.659119] ------------[ cut here ]------------ [ 1279.659179] WARNING: CPU: 2 PID: 5638 at drivers/devfreq/devfreq-event.c:360 devfreq_event_remove_edev+0x84/0x8c ... [ 1279.659352] Hardware name: Google Kevin (DT) [ 1279.659363] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO BTYPE=--) [ 1279.659371] pc : devfreq_event_remove_edev+0x84/0x8c [ 1279.659380] lr : devm_devfreq_event_release+0x1c/0x28 ... [ 1279.659571] Call trace: [ 1279.659582] devfreq_event_remove_edev+0x84/0x8c [ 1279.659590] devm_devfreq_event_release+0x1c/0x28 [ 1279.659602] release_nodes+0x1cc/0x244 [ 1279.659611] devres_release_all+0x44/0x60 [ 1279.659621] device_release_driver_internal+0x11c/0x1ac [ 1279.659629] device_driver_detach+0x20/0x2c [ 1279.659641] unbind_store+0x7c/0xb0 [ 1279.659650] drv_attr_store+0x2c/0x40 [ 1279.659663] sysfs_kf_write+0x44/0x58 [ 1279.659672] kernfs_fop_write_iter+0xf4/0x190 [ 1279.659684] vfs_write+0x2b0/0x2e4 [ 1279.659693] ksys_write+0x80/0xec [ 1279.659701] __arm64_sys_write+0x24/0x30 [ 1279.659714] el0_svc_common+0xf0/0x1d8 [ 1279.659724] do_el0_svc_compat+0x28/0x3c [ 1279.659738] el0_svc_compat+0x10/0x1c [ 1279.659746] el0_sync_compat_handler+0xa8/0xcc [ 1279.659758] el0_sync_compat+0x188/0x1c0 [ 1279.659768] ---[ end trace cec200e5094155b4 ]---

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-24	0.06%	0.05%	-0.01%
2	2026-04-06	0.03%	0.06%	+0.03%
3	2025-11-21	—	0.03%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-05-24

0.06%

0.05%

-0.01%

2026-04-06

0.03%

0.06%

+0.03%

2025-11-21

—

0.03%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.5

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

3.6

[email protected]

OS Trackers for CVE-2022-49460

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2022-49460 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2022-49460
`redhat`	—	—	https://access.redhat.com/security/cve/CVE-2022-49460
`suse`	medium	—	https://www.suse.com/security/cve/CVE-2022-49460/
`ubuntu`	medium	CVE-2022-49460 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, ignored 150, released 135, not-affected 101, needed 20.	https://ubuntu.com/security/CVE-2022-49460

Affected software / configurations for CVE-2022-49460

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 4.9, < 4.19.247	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 4.20, < 5.4.198	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.5, < 5.10.121	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.11, < 5.15.46	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 5.17.14	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.18, < 5.18.3	cpe:2.3:o:linux:linux_kernel::::::::

References for CVE-2022-49460

URL	Tags
https://git.kernel.org/stable/c/2fccf9e6050e0e3b8b4cd275d41daf7f7fa22804	Patch
https://git.kernel.org/stable/c/664736e2cc09e504ce58ec61164d029d1f2651bb	Patch
https://git.kernel.org/stable/c/86b091b6894c449d2734de7aa7d79ccb33ffd97d	Patch
https://git.kernel.org/stable/c/a0180e324a9a63de8f770da300477b48cb4a53f1	Patch
https://git.kernel.org/stable/c/a9c2b23a7ac6ab19214cad8cac8af8608a4d9cef	Patch
https://git.kernel.org/stable/c/cb1be1d4be18fe286ba5a67d928598378fd7fbe5	Patch
https://git.kernel.org/stable/c/fb089b6f21de03a685dd31df3789bbb01c59f8e3	Patch

URL

CVE-2022-49460 | PM / devfreq: rk3399_dmc: Disable edev on remove()

Exploit prediction scoring system (EPSS) score for CVE-2022-49460

Common vulnerability scoring system (CVSS) metrics for CVE-2022-49460

Weakness enumeration for CVE-2022-49460

OS Trackers for CVE-2022-49460

Affected software / configurations for CVE-2022-49460

References for CVE-2022-49460